Ukrainian Prime Minister Arseniy Yatseniuk claims that holding bilateral negotiations between his country and Russia is impossible at this stage.

"The government's position concerning talks with the Russian Federation remains unchanged as well: in present-day conditions, bilateral negotiations are not considered possible without the presence of the U.S. and the European Union," he said at a Ukrainian Cabinet's sitting on Tuesday.

Yatseniuk said he feared possible "deceit" on the part of Russia during such talks.